#pragma once

#include "Export.h"

#include "Render/Shader.h"

#include <vector>

#include <string_view>

#include <optional>

#include <memory>

#include <type_traits>

namespace sh::core { class FileLoader; }

namespace sh::game

{

class ShaderBuilder;

class ShaderLoader {

private:

std::unique_ptr<sh::core::FileLoader> loader;

ShaderBuilder* builder;

public:

SH_GAME_API ShaderLoader(ShaderBuilder* builder);

SH_GAME_API ~ShaderLoader();

SH_GAME_API auto LoadShader(std::string_view vertexShader, std::string_view fragShader) -> render::Shader*;

template<typename T>

auto LoadShader(std::string_view vertexShader, std::string_view fragShader) -> std::enable_if_t<std::is_base_of_v<render::Shader, T>, T*>

{

render::Shader* shader{ LoadShader(vertexShader, fragShader) };

if (shader == nullptr)

return nullptr;

T* shaderPtr = sh::core::reflection::Cast<T>(shader);

if (shaderPtr == nullptr)

return nullptr;

return shaderPtr;

}

};

}